Camera History

1. Explain the “camera obscura” effect. How is it achieved?

• Inside a completely dark room, a tiny hole is created in one wall. Through the hole light is focused, and the outside scene is projected (upside down) on the opposite wall. The effect came to be known as the "camera obscura" which is Latin for "dark room". This was the first camera. The hole acted like a lens, focusing and projecting light onto the wall of the dark chamber.

2. What invention during the 17th Century helped man get a step closer to creating the modern camera?

•   High quality glass lenses.

3. What were the parts of the first modern camera invented by Niepce?

•  A glass lens, a dark box, and film.

4.What do modern digital cameras have in common with Niepce’s camera?

•  A glass lens, a dark box, and film.

5. What do digital cameras use to capture an image?

•   Replacing old-fashioned plastic film, digital cameras capture the images with an electronic sensor called a CCD.

6. What is the difference between the Auto Mode and the Program mode?

• The camera will completely control flash and exposure. On most cameras this is labelled "auto", on others simply "A". Some cameras only have Program.

• automatic-assist, just point and shoot. Unlike full auto mode, you can usually control flash and a few other camera settings.

7. What is the Portrait mode used for? How does it work?

• To attempt to blur out the background, camera will try to use the fastest available lens setting (aperture).

8. What is the Sports mode used for? (not just sports) How does it work?

• To freeze motion, camera will use the highest shutter speed possible.

9. Why should you do a half press on the trigger button?

• Using the half-press is easy, aim your camera directly at the subject and gently press the shutter release button until the camera comes "alive".

10. What does this symbol mean?

no flash. There are many cases where you may not want flash at all. used.

• 
  

 When would you use this?

• The mood of the photograph can sometimes be more dramatic when the natural light is 

11.What does this symbol mean?

• In most camera modes, Auto-flash is enabled by default and will automatically fire if the camera thinks it needs more light.

When would you use this?

• If the room is too dark and the camera needs more light.

12. What happens to your photo if there is too much light?

•  Too much light and the picture will be washed out. Not enough light and the picture will be too dark. A good photograph depends on calculating the exposure settings that will give the film the "right" amount of exposure.

13. What happens to your photo if there is not enough light?

 

• The picture will be too dark.

14. What is a “stop.”

• A relative measure of light.

15. How many stops brighter is the new planet if there are two sons instead of one?

•  2

16. How many stops brighter is the new planet if there are four sons instead of two?

• 4
  

17. What affect does a longer shutter speed of have?

• Longer shutter speeds = more light

18. What affect does a shorter shutter speed have?

• shorter shutter speeds = less light

19. What does the aperture control?

• The aperture is like a pupil. You can control the aperture by setting the "Aperture Opening", also known as an F-Stop.

20. When adjusting the aperture, how can you increase the amount of light?

• Smaller F-stops numbers = larger openings
  larger openings = more light